configure.ac: Use AX_GCC_BUILTIN to check availability of __builtin_bswap32 v2
[mesa.git] / src / gallium / auxiliary / util / u_inlines.h
index a1ece415f4676726c82795beef52f008eaeaf8c3..e9526159ae33ea6c43823e5f9c1ae3bd973a7909 100644 (file)
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -114,6 +114,22 @@ pipe_surface_reference(struct pipe_surface **ptr, struct pipe_surface *surf)
    *ptr = surf;
 }
 
+/**
+ * Similar to pipe_surface_reference() but always set the pointer to NULL
+ * and pass in an explicit context.  The explicit context avoids the problem
+ * of using a deleted context's surface_destroy() method when freeing a surface
+ * that's shared by multiple contexts.
+ */
+static INLINE void
+pipe_surface_release(struct pipe_context *pipe, struct pipe_surface **ptr)
+{
+   if (pipe_reference_described(&(*ptr)->reference, NULL,
+                                (debug_reference_descriptor)debug_describe_surface))
+      pipe->surface_destroy(pipe, *ptr);
+   *ptr = NULL;
+}
+
+
 static INLINE void
 pipe_resource_reference(struct pipe_resource **ptr, struct pipe_resource *tex)
 {
@@ -172,14 +188,12 @@ pipe_so_target_reference(struct pipe_stream_output_target **ptr,
 
 static INLINE void
 pipe_surface_reset(struct pipe_context *ctx, struct pipe_surface* ps,
-                   struct pipe_resource *pt, unsigned level, unsigned layer,
-                   unsigned flags)
+                   struct pipe_resource *pt, unsigned level, unsigned layer)
 {
    pipe_resource_reference(&ps->texture, pt);
    ps->format = pt->format;
    ps->width = u_minify(pt->width0, level);
    ps->height = u_minify(pt->height0, level);
-   ps->usage = flags;
    ps->u.tex.level = level;
    ps->u.tex.first_layer = ps->u.tex.last_layer = layer;
    ps->context = ctx;
@@ -187,12 +201,11 @@ pipe_surface_reset(struct pipe_context *ctx, struct pipe_surface* ps,
 
 static INLINE void
 pipe_surface_init(struct pipe_context *ctx, struct pipe_surface* ps,
-                  struct pipe_resource *pt, unsigned level, unsigned layer,
-                  unsigned flags)
+                  struct pipe_resource *pt, unsigned level, unsigned layer)
 {
    ps->texture = 0;
    pipe_reference_init(&ps->reference, 1);
-   pipe_surface_reset(ctx, ps, pt, level, layer, flags);
+   pipe_surface_reset(ctx, ps, pt, level, layer);
 }
 
 /* Return true if the surfaces are equal. */
@@ -214,6 +227,12 @@ pipe_surface_equal(struct pipe_surface *s1, struct pipe_surface *s2)
  * Convenience wrappers for screen buffer functions.
  */
 
+
+/**
+ * Create a new resource.
+ * \param bind  bitmask of PIPE_BIND_x flags
+ * \param usage  bitmask of PIPE_USAGE_x flags
+ */
 static INLINE struct pipe_resource *
 pipe_buffer_create( struct pipe_screen *screen,
                    unsigned bind,
@@ -234,12 +253,20 @@ pipe_buffer_create( struct pipe_screen *screen,
    return screen->resource_create(screen, &buffer);
 }
 
+
+/**
+ * Map a range of a resource.
+ * \param offset  start of region, in bytes 
+ * \param length  size of region, in bytes 
+ * \param access  bitmask of PIPE_TRANSFER_x flags
+ * \param transfer  returns a transfer object
+ */
 static INLINE void *
 pipe_buffer_map_range(struct pipe_context *pipe,
                      struct pipe_resource *buffer,
                      unsigned offset,
                      unsigned length,
-                     unsigned usage,
+                     unsigned access,
                      struct pipe_transfer **transfer)
 {
    struct pipe_box box;
@@ -251,19 +278,8 @@ pipe_buffer_map_range(struct pipe_context *pipe,
 
    u_box_1d(offset, length, &box);
 
-   *transfer = pipe->get_transfer( pipe,
-                                   buffer,
-                                   0,
-                                   usage,
-                                   &box);
-
-   if (*transfer == NULL)
-      return NULL;
-
-   map = pipe->transfer_map( pipe, *transfer );
+   map = pipe->transfer_map(pipe, buffer, 0, access, &box, transfer);
    if (map == NULL) {
-      pipe->transfer_destroy( pipe, *transfer );
-      *transfer = NULL;
       return NULL;
    }
 
@@ -271,13 +287,18 @@ pipe_buffer_map_range(struct pipe_context *pipe,
 }
 
 
+/**
+ * Map whole resource.
+ * \param access  bitmask of PIPE_TRANSFER_x flags
+ * \param transfer  returns a transfer object
+ */
 static INLINE void *
 pipe_buffer_map(struct pipe_context *pipe,
                 struct pipe_resource *buffer,
-                unsigned usage,
+                unsigned access,
                 struct pipe_transfer **transfer)
 {
-   return pipe_buffer_map_range(pipe, buffer, 0, buffer->width0, usage, transfer);
+   return pipe_buffer_map_range(pipe, buffer, 0, buffer->width0, access, transfer);
 }
 
 
@@ -285,10 +306,7 @@ static INLINE void
 pipe_buffer_unmap(struct pipe_context *pipe,
                   struct pipe_transfer *transfer)
 {
-   if (transfer) {
-      pipe->transfer_unmap(pipe, transfer);
-      pipe->transfer_destroy(pipe, transfer);
-   }
+   pipe->transfer_unmap(pipe, transfer);
 }
 
 static INLINE void
@@ -301,8 +319,8 @@ pipe_buffer_flush_mapped_range(struct pipe_context *pipe,
    int transfer_offset;
 
    assert(length);
-   assert(transfer->box.x <= offset);
-   assert(offset + length <= transfer->box.x + transfer->box.width);
+   assert(transfer->box.x <= (int) offset);
+   assert((int) (offset + length) <= transfer->box.x + transfer->box.width);
 
    /* Match old screen->buffer_flush_mapped_range() behaviour, where
     * offset parameter is relative to the start of the buffer, not the
@@ -323,12 +341,12 @@ pipe_buffer_write(struct pipe_context *pipe,
                   const void *data)
 {
    struct pipe_box box;
-   unsigned usage = PIPE_TRANSFER_WRITE;
+   unsigned access = PIPE_TRANSFER_WRITE;
 
    if (offset == 0 && size == buf->width0) {
-      usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+      access |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
    } else {
-      usage |= PIPE_TRANSFER_DISCARD_RANGE;
+      access |= PIPE_TRANSFER_DISCARD_RANGE;
    }
 
    u_box_1d(offset, size, &box);
@@ -336,7 +354,7 @@ pipe_buffer_write(struct pipe_context *pipe,
    pipe->transfer_inline_write( pipe,
                                 buf,
                                 0,
-                                usage,
+                                access,
                                 &box,
                                 data,
                                 size,
@@ -369,12 +387,18 @@ pipe_buffer_write_nooverlap(struct pipe_context *pipe,
                                0, 0);
 }
 
+
+/**
+ * Create a new resource and immediately put data into it
+ * \param bind  bitmask of PIPE_BIND_x flags
+ * \param usage  bitmask of PIPE_USAGE_x flags
+ */
 static INLINE struct pipe_resource *
 pipe_buffer_create_with_data(struct pipe_context *pipe,
                              unsigned bind,
                              unsigned usage,
                              unsigned size,
-                             void *ptr)
+                             const void *ptr)
 {
    struct pipe_resource *res = pipe_buffer_create(pipe->screen,
                                                   bind, usage, size);
@@ -397,35 +421,57 @@ pipe_buffer_read(struct pipe_context *pipe,
                                         offset, size,
                                         PIPE_TRANSFER_READ,
                                         &src_transfer);
+   if (!map)
+      return;
 
-   if (map)
-      memcpy(data, map, size);
-
+   memcpy(data, map, size);
    pipe_buffer_unmap(pipe, src_transfer);
 }
 
-static INLINE struct pipe_transfer *
-pipe_get_transfer( struct pipe_context *context,
-                   struct pipe_resource *resource,
-                   unsigned level, unsigned layer,
-                   enum pipe_transfer_usage usage,
-                   unsigned x, unsigned y,
-                   unsigned w, unsigned h)
+
+/**
+ * Map a resource for reading/writing.
+ * \param access  bitmask of PIPE_TRANSFER_x flags
+ */
+static INLINE void *
+pipe_transfer_map(struct pipe_context *context,
+                  struct pipe_resource *resource,
+                  unsigned level, unsigned layer,
+                  unsigned access,
+                  unsigned x, unsigned y,
+                  unsigned w, unsigned h,
+                  struct pipe_transfer **transfer)
 {
    struct pipe_box box;
-   u_box_2d_zslice( x, y, layer, w, h, &box );
-   return context->get_transfer( context,
-                                 resource,
-                                 level,
-                                 usage,
-                                 &box );
+   u_box_2d_zslice(x, y, layer, w, h, &box);
+   return context->transfer_map(context,
+                                resource,
+                                level,
+                                access,
+                                &box, transfer);
 }
 
+
+/**
+ * Map a 3D (texture) resource for reading/writing.
+ * \param access  bitmask of PIPE_TRANSFER_x flags
+ */
 static INLINE void *
-pipe_transfer_map( struct pipe_context *context,
-                   struct pipe_transfer *transfer )
+pipe_transfer_map_3d(struct pipe_context *context,
+                     struct pipe_resource *resource,
+                     unsigned level,
+                     unsigned access,
+                     unsigned x, unsigned y, unsigned z,
+                     unsigned w, unsigned h, unsigned d,
+                     struct pipe_transfer **transfer)
 {
-   return context->transfer_map( context, transfer );
+   struct pipe_box box;
+   u_box_3d(x, y, z, w, h, d, &box);
+   return context->transfer_map(context,
+                                resource,
+                                level,
+                                access,
+                                &box, transfer);
 }
 
 static INLINE void
@@ -435,14 +481,6 @@ pipe_transfer_unmap( struct pipe_context *context,
    context->transfer_unmap( context, transfer );
 }
 
-
-static INLINE void
-pipe_transfer_destroy( struct pipe_context *context, 
-                       struct pipe_transfer *transfer )
-{
-   context->transfer_destroy(context, transfer);
-}
-
 static INLINE void
 pipe_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
                          struct pipe_resource *buf)
@@ -460,9 +498,13 @@ pipe_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 }
 
 
-static INLINE boolean util_get_offset( 
-   const struct pipe_rasterizer_state *templ,
-   unsigned fill_mode)
+/**
+ * Get the polygon offset enable/disable flag for the given polygon fill mode.
+ * \param fill_mode  one of PIPE_POLYGON_MODE_POINT/LINE/FILL
+ */
+static INLINE boolean
+util_get_offset(const struct pipe_rasterizer_state *templ,
+                unsigned fill_mode)
 {
    switch(fill_mode) {
    case PIPE_POLYGON_MODE_POINT:
@@ -477,41 +519,12 @@ static INLINE boolean util_get_offset(
    }
 }
 
-/**
- * This function is used to copy an array of pipe_vertex_buffer structures,
- * while properly referencing the pipe_vertex_buffer::buffer member.
- *
- * \sa util_copy_framebuffer_state
- */
-static INLINE void util_copy_vertex_buffers(struct pipe_vertex_buffer *dst,
-                                            unsigned *dst_count,
-                                            const struct pipe_vertex_buffer *src,
-                                            unsigned src_count)
-{
-   unsigned i;
-
-   /* Reference the buffers of 'src' in 'dst'. */
-   for (i = 0; i < src_count; i++) {
-      pipe_resource_reference(&dst[i].buffer, src[i].buffer);
-   }
-   /* Unreference the rest of the buffers in 'dst'. */
-   for (; i < *dst_count; i++) {
-      pipe_resource_reference(&dst[i].buffer, NULL);
-   }
-
-   /* Update the size of 'dst' and copy over the other members
-    * of pipe_vertex_buffer. */
-   *dst_count = src_count;
-   memcpy(dst, src, src_count * sizeof(struct pipe_vertex_buffer));
-}
-
 static INLINE float
 util_get_min_point_size(const struct pipe_rasterizer_state *state)
 {
    /* The point size should be clamped to this value at the rasterizer stage.
     */
-   return state->gl_rasterization_rules &&
-          !state->point_quad_rasterization &&
+   return !state->point_quad_rasterization &&
           !state->point_smooth &&
           !state->multisample ? 1.0f : 0.0f;
 }
@@ -542,7 +555,7 @@ util_query_clear_result(union pipe_query_result *result, unsigned type)
       memset(&result->pipeline_statistics, 0, sizeof(result->pipeline_statistics));
       break;
    default:
-      assert(0);
+      memset(result, 0, sizeof(*result));
    }
 }
 
@@ -579,12 +592,51 @@ util_pipe_tex_to_tgsi_tex(enum pipe_texture_target pipe_tex_target,
       return nr_samples > 1 ? TGSI_TEXTURE_2D_ARRAY_MSAA :
                               TGSI_TEXTURE_2D_ARRAY;
 
+   case PIPE_TEXTURE_CUBE_ARRAY:
+      return TGSI_TEXTURE_CUBE_ARRAY;
+
    default:
       assert(0 && "unexpected texture target");
       return TGSI_TEXTURE_UNKNOWN;
    }
 }
 
+
+static INLINE void
+util_copy_constant_buffer(struct pipe_constant_buffer *dst,
+                          const struct pipe_constant_buffer *src)
+{
+   if (src) {
+      pipe_resource_reference(&dst->buffer, src->buffer);
+      dst->buffer_offset = src->buffer_offset;
+      dst->buffer_size = src->buffer_size;
+      dst->user_buffer = src->user_buffer;
+   }
+   else {
+      pipe_resource_reference(&dst->buffer, NULL);
+      dst->buffer_offset = 0;
+      dst->buffer_size = 0;
+      dst->user_buffer = NULL;
+   }
+}
+
+static INLINE unsigned
+util_max_layer(const struct pipe_resource *r, unsigned level)
+{
+   switch (r->target) {
+   case PIPE_TEXTURE_CUBE:
+      return 6 - 1;
+   case PIPE_TEXTURE_3D:
+      return u_minify(r->depth0, level) - 1;
+   case PIPE_TEXTURE_1D_ARRAY:
+   case PIPE_TEXTURE_2D_ARRAY:
+   case PIPE_TEXTURE_CUBE_ARRAY:
+      return r->array_size - 1;
+   default:
+      return 0;
+   }
+}
+
 #ifdef __cplusplus
 }
 #endif